A/C System, Starting After Charging Refrigerant Circuit

WARNING: This page is about a different car, the 2023 Volkswagen Arteon. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

There is a risk of damaging the A/C compressor. Refrigerant oil may accumulate in the compression chamber when the A/C compressor is removed.

- After installing a new A/C compressor or filling with fresh refrigerant oil, turn the A/C compressor 10 times by hand before installing the ribbed belt.

-- Start the engine with the A/C compressor switched off (version with A/C clutch).

-- Set the A/C compressor to minimum output, such as "ECON" mode or A/C off (version with no A/C clutch with regulator valve).

-- Wait until idle speed has stabilized.

-- Switch on the A/C compressor and operate the system for at least two minutes at idle speed.

CAUTION:

Risk of damaging the A/C compressor or the A/C service station.

A short circuit between the high and low pressure side is possible when opening the valves with the A/C system is on.

- Never open the valves in the high or low pressure side when the A/C system is on.

-- If necessary, check the pressures in the refrigerant circuit using the A/C Service Station.

-- Turn off the engine.

-- Unscrew the hand wheel at the quick-release coupling adapter.

-- Disconnect the charging hose from the refrigerant circuit.

-- Reattach the caps.